SCMW09T304-RK6 WKK20S Wendeplatten - Walter Tools

Benefit from a cost‑effective, wear‑resistant solution that combines Walter Tools' Tiger‑tec Silver coating with an RK6 chipbreaker and a 0.4 mm corner radius for stable machining of cast iron; order directly via Metav Werkzeuge or consult their specialists for application advice.

SCMW09T304-RK6 WKK20S indexable turning insert — Tiger‑tec Silver (Walter Tools)

The SCMW09T304-RK6 WKK20S is an indexable turning insert optimised for productive machining of cast iron, offering a positive 7° clearance and a robust 0.4 mm corner radius for reliable edge life

• Tiger‑tec Silver coating for high wear resistance
• Optimised RK6 chipbreaker for cast iron
• 7° positive clearance for controlled cutting
• 0.4 mm corner radius for robust edge strength

Consistent tool life for abrasive cast iron machining

The combination of the Tiger‑tec Silver coating and the WKK20S carbide grade targets the abrasive wear typical of grey and nodular cast irons. Coated hardmetal technology reduces flank wear and extends usable life, which translates into fewer index changes and lower tooling costs over time. The insert's geometry and coating work together to manage thermal loads and abrasion; as a result, process stability is improved and cycle times remain predictable even under demanding conditions. This makes the insert particularly suited to series production where repeatability matters.

Chip control and cutting stability for efficient turning

A dedicated RK6 chipbreaker ensures consistent chip formation when machining cast iron materials (ISO group K). The chipbreaker design promotes short, easily evacuated chips, reducing the risk of entanglement and improving surface integrity. The 7° clearance helps maintain a controlled cutting angle that reduces cutting forces and vibration, supporting higher feed rates without sacrificing finish. These geometry choices contribute directly to greater productivity and safer machining routines in both automated and manual turning operations.

Robust edge geometry for predictable performance

The 0.4 mm corner radius and the square 90° platform provide a sturdy cutting edge that resists chipping during interrupted cuts or when encountering hard inclusions in castings. The square 90° shape offers multiple indexing positions per insert, enabling efficient use of the cutting material and straightforward tool handling. The T3 thickness delivers sufficient edge support for medium to heavy turning applications, helping to maintain dimensional accuracy and reducing the frequency of tool changes.

Practical benefits for workshop integration

Designed for straightforward implementation into standard insert holders, the insert's identification — including the ISO‑style designation — simplifies tooling choices and procurement. The coated hardmetal grade targets cast iron machining specifically, so tool path strategies and cutting data from similar materials can be adopted with minimal adjustment. Using these inserts contributes to predictable tool consumption rates and easier inventory planning, which supports more efficient production scheduling in job shops and manufacturing lines alike.

For demanding cast‑iron turning applications, select the Walter Tools Tiger‑tec Silver SCMW09T304‑RK6 WKK20S inserts via Metav Werkzeuge for process reliability and tailored application support — contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for expert guidance.

Technical data

• SKU: SCMW09T304-RK6-WKK20S-WALTER
• Designation: SCMW09T304-RK6
• Grade/Sorte: WKK20S
• Series: Tiger‑tec Silver
• Manufacturer: Walter Tools
• Product type: indexable turning insert

Facts

• Free angle: 7°
• Corner radius: 0.4 mm
• Insert shape: square 90°
• Insert size: 09
• Thickness: T3
• Tolerance class: M

Special features

• Coating: Tiger‑tec Silver (coated carbide)
• Chipbreaker: RK6
• Material application: cast iron (ISO group K)
• Design: positive geometry, robust edge support

FAQ

What materials is this insert suitable for?
The SCMW09T304‑RK6 WKK20S insert is optimised for machining cast iron (ISO group K) and is engineered to manage the abrasive wear and short, breaking chips typical of those materials.

What does the WKK20S designation indicate?
WKK20S denotes Walter Tools' coated hardmetal grade within the Tiger‑tec Silver family; it signifies a wear‑resistant, universal/tough variant tuned for cast iron applications.

How does the RK6 chipbreaker affect machining?
The RK6 chipbreaker promotes short, controllable chips and consistent chip evacuation, which improves surface quality and reduces the risk of chip entanglement in turning operations.

Why is the 0.4 mm corner radius important?
A 0.4 mm corner radius increases edge strength and reduces the likelihood of chipping at the nose, enhancing stability during interrupted cuts and when encountering inclusions in cast components.

Which insert geometry and clamping features should be noted?
The insert is a square 90° shape with a T3 thickness and a positive 7° clearance; these features support multiple indexings and provide robust edge support for medium to heavy turning tasks.

Walter Tools / Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

The Walter AG (brand: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names belong to their respective owners. The article described is an original, brand‑new product from the manufacturer.